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      <a id="STKSimple"></a>
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      <a id="IndexStksimple" class="indexterm"></a>
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        <h2>
          <span class="refentrytitle">STKSimple</span>
        </h2>
        <p>STKSimple — 
      STKSimple is a wavetable/noise instrument.
      </p>
      </div>
      <div class="refsect1">
        <a id="idp152796816"></a>
        <h2>Description</h2>
        <p>
      STKSimple is a wavetable/noise instrument.
      It combines a looped wave, a noise source, a biquad resonance filter, a one-pole filter, and an ADSR envelope to create some interesting sounds.
    </p>
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      <div class="refsect1">
        <a id="idp152800896"></a>
        <h2>Syntax</h2>
        <pre class="synopsis">asignal <span class="command"><strong>STKSimple</strong></span> ifrequency, iamplitude, [kpos, kv1[, kcross, kv2[, kenv, kv3[, kgain, kv4]]]]</pre>
      </div>
      <div class="refsect1">
        <a id="idp152803072"></a>
        <h2>Initialization</h2>
        <p>
      <span class="emphasis"><em>ifrequency</em></span> -- Frequency of note played, in Hertz.
    </p>
        <p>
      <span class="emphasis"><em>iamplitude</em></span> -- Amplitude of note played (range 0-1).
    </p>
      </div>
      <div class="refsect1">
        <a id="idp152865952"></a>
        <h2>Performance</h2>
        <p><span class="emphasis"><em>kpos</em></span> -- controller 2, position of filter pole. Value range of kv1 is 0-127.</p>
        <p><span class="emphasis"><em>kcross</em></span> -- controller 4, noise/pitched cross-fade. Value range of kv2 is 0-127.</p>
        <p><span class="emphasis"><em>kenv</em></span> -- controller 11, rate of envelope. Value range of kv3 is 0-127.</p>
        <p><span class="emphasis"><em>kgain</em></span> -- controller 128, gain. Value range of kv4 is 0-127.</p>
      </div>
      <div class="refsect1">
        <a id="idp152869760"></a>
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              <th align="left">Note</th>
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                <p>
          The code for this opcode is taken directly from the Simple class in the Synthesis Toolkit in C++ by Perry R. Cook and Gary P. Scavone. More on the STK classes can be found here:  
<a class="ulink" href="https://ccrma.stanford.edu/software/stk/classes.html" target="_top"><em class="citetitle">https://ccrma.stanford.edu/software/stk/classes.html</em></a>
</p>
                <p>
        <span class="emphasis"><em>kc1, kv1, kc2, kv2, kc3, kv3, kc4, kv4, kc5, kv5, kc6, kv6, kc7, kv7, kc8, kv8</em></span> -- Up to 8 optional k-rate controller pairs for the STK opcodes.
      Each controller pair consists of a controller number (kc) followed by a controller value (kv). Both the controller numbers and the controller values are krate variables. However, during a performance, normally the controller numbers stay fixed while the corresponding controller values may change at any time.
The order of the controller pair is arbitrary, as long as they are after <span class="emphasis"><em>iamplitude</em></span>. Also, it is not needed that all controller pairs are used.
</p>
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      <div class="refsect1">
        <a id="idp152874240"></a>
        <h2>Examples</h2>
        <p>
      Here is an example of the STKSimple opcode. It uses the file <a class="ulink" href="examples/STKSimple.csd" target="_top"><em class="citetitle">STKSimple.csd</em></a>.
     
      </p>
        <div class="example">
          <a id="idp152876096"></a>
          <p class="title">
            <strong>Example 863. Example of the STKSimple opcode.</strong>
          </p>
          <div class="example-contents">
            <pre class="programlisting">
<span class="csdtag">&lt;CsoundSynthesizer&gt;</span>
<span class="csdtag">&lt;CsOptions&gt;</span>
<span class="comment">; Select audio/midi flags here according to platform</span>
-odac     <span class="comment">;;;realtime audio out</span>
<span class="comment">;-iadc    ;;;uncomment -iadc if RT audio input is needed too</span>
<span class="comment">; For Non-realtime ouput leave only the line below:</span>
<span class="comment">; -o STKSimple.wav -W ;;; for file output any platform</span>
<span class="csdtag">&lt;/CsOptions&gt;</span>
<span class="csdtag">&lt;CsInstruments&gt;</span>

<span class="ohdr">sr</span> <span class="op">=</span> 44100
<span class="ohdr">ksmps</span> <span class="op">=</span> 32
<span class="ohdr">nchnls</span> <span class="op">=</span> 2
<span class="ohdr">0dbfs</span>  <span class="op">=</span> 1

<span class="oblock">instr</span> 1

ifrq	<span class="op">=</span>	p4
kv1	<span class="opc">line</span>	p5, p3, p6				<span class="comment">;Filter Pole Position</span>
kv2	<span class="opc">line</span>	20, p3, 90				<span class="comment">;Noise/Pitched Cross-Fade</span>

asig	<span class="opc">STKSimple</span> <span class="opc">cpspch</span>(p4), 1, 2, kv1, 4, kv2, 11, 10, 128, 120
	<span class="opc">outs</span> asig, asig
<span class="oblock">endin</span>

<span class="csdtag">&lt;/CsInstruments&gt;</span>
<span class="csdtag">&lt;CsScore&gt;</span>

<span class="stamnt">i</span> 1 0 5 7.00 100 0
<span class="stamnt">i</span> 1 + .  7.05 10 127
<span class="stamnt">i</span> 1 + .  8.03 100 0
<span class="stamnt">i</span> 1 + .  5.00 10 10
<span class="stamnt">e</span>
<span class="csdtag">&lt;/CsScore&gt;</span>
<span class="csdtag">&lt;/CsoundSynthesizer&gt;</span>
</pre>
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        <p><br class="example-break" />
    </p>
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      <div class="refsect1">
        <a id="idp152878016"></a>
        <h2>See Also</h2>
        <p>
      <a class="link" href="STKClarinet.html" title="STKClarinet"><em class="citetitle">STKClarinet</em></a>.
    </p>
      </div>
      <div class="refsect1">
        <a id="idp152880096"></a>
        <h2>Credits</h2>
        <p>
      </p>
        <table border="0" summary="Simple list" class="simplelist">
          <tr>
            <td>Author: Michael Gogins (after Perry Cook)</td>
          </tr>
          <tr>
            <td>Irreducible Productions</td>
          </tr>
          <tr>
            <td>New York, NY</td>
          </tr>
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        <p>
    </p>
        <p>New in Csound version 5.11</p>
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